Bar



Z. A. PETTY Aug. 2, 1938,.

BAR

Filed March 19 ZAM/Ams@ Pfr/'"5 llllIllIlllI Imm W ha llMlllll/l/l/llll.

Patented Aug. 2, 1938 d d UNITED STATES PATENT OFFICE BAR Zach Ansel Petty, Beckley, W. Va. Application March 19, 1938, Serial No. 197,006

' 10 claims. (c1. 18o- 9) This invention relates to bars for use in openrotatable in the event the. outer shell portion is ings, doors, enclosures or the like and more parcut through by a tool. ticularly to a bar so constructed as to resist the To the above objects and others which may action of a tool thereon for the cutting of the bar. hereinafter appear the invention consists of the An object of this invention is to provide an. imnovel construction, combination and arrangement proved bar adapted for use as a prison bar in of parts as will be more specifically referred to doors, Windows or the like which is so constructed and illustrated in the accompanying drawing that it will resist the action of a saw oridther wherein is shown embodiments of the invention, cutting tool which may cut through the outer but it is to be understood that changes, variations shell. d and modifications may be resorted to which fall 10 Another object of this invention is to provide a Within the scope of the invention as claimed. bar of this type which may have the ends thereof In the drawing:

firmly secured against movement, such as being Figure 1 is a longitudinal section partly broken embedded in a frame or opening, and which is away of a tool-proof bar constructed according to provided on the interior thereof with a rotary tool an embodiment of this invention, 15 resisting means which will resist the action of' a Figure 2 is a fragmentary longitudinal section cutting tool such as a saw, file or the like. of a modied form of this bar,

A further object of this invention is to pro- Figure 3 is a view similar to Figure 2 showing vide a bar of this type which includes an outer another modification of this invention, zo metal shell and an inner glass shell which is Figure 4 is a fragmentary sectional View of a 20 rotatable on the interior of the outer shell so further mOdieatiOh 0f this ihVeIltOh, that in the event the outer shell is cut through the Figure 5 iS a SeCtiOllal VieW taken 0n the line tool used in cutting Will eiect rotation of the. in- 5-5 Of Figure 1, and ner shell which due to its tool resisting eharac- Figure 6 is a fragmentary perspective View of teristics will prevent the tool from cutting thereone end portion of a bar constructed according 25 through. Y to this invention.

Another object of this invention is to provide Referring t0 the drawing, the numeral i0 eSgeI a tool-proof bar of this type which may be used nates generally a bar constructed according to for cells in prisons or like barred compartments. thSihVeIltOl Wheh COmDISeS an Outer Shell i i Afurther object of this invention` is to provide a 0f tubular form Which S PI'OVded at each end 00 bar of this type which embodies an outer metal thereof With a reduced portion |3- A Cap i2 is shell or bar, an inner rotatable bar and a tubular engaged- OVeI the reduced end pOItiOrl i3 0f the glass member which is rotatable relative to the Outer Shed 0r tubular member ii and this Cap l2 outer shell and also relative to the core or inner is Preferably tightly engaged With the 'reduced han portion I3. The cap l2 may be mounted on an 35 Still another object of this invention is to proetld 0f the Outer Shell 01" Casing H by p1" @seing 0T Vide in a bar of this type means whereby the the like so that when the cap I2 is in position the lings which may drop into the interior of the adjacent end of the hollow bar member H is outer shell and any broken chips or the like will tmly sealed' to prevent the entrance of moisture 40 not hold the inner shell or the inner core from ddd or the hke The Opposite ddd pdrddnddf 40 rotation so as to thereby resist the action of the the bdr m dre adapted to be embedded m d Wm Cutting i001- l f UQI iOeff-t de Oddi ndoslie A further object of this invention is to provide y omda e m .e a bar of this kind which is relatively Simple in Window structure, or other enclosure so that thls cap I2 cannot be engaged by a tool or the like. 45 construction and Which 1s entn ely sealed agalnst A Shaft or elongated Solid bar m is Idisposed im the action of weather so that the bar Will resist Side the outer tubular bar H and this Shaft 01. the cutting action of a tool irrespective of the bar |415 provided with reduced Opposite end pcm length of time that thebar is secured in the win. tions |5 providing a Shoulder l5 adjacent the dow or other closure. Y n ends of the inner member I4. An inner race 5o A further Objeet 0f this ihVehtiOn iS to provide member I'l is disposed about the reduced cylinin a bar 0f this type means fOr mOurltiIlg an ndrical portion I5 of the inner bar I4 and an outer ner rotatable element 0n anti-friction bearings race member I8 is positioned in a seat i9 provided which are sealed against the action of weather in the adjacent end of the outer tubular member so that the inner parts of the device will be freely Il. Balls 20 or the like are interposed between 55 lll the two race members I1 and I8 and provide an anti-friction bearing for the end of the inner bar member I4. This bar member I4 is constructed of relatively highly tempered metal being preferably hardened to a degree whereby the surface of this member will resist the action of a tool such as a saw or the like.

A second tubular member 2| is disposed within the outer tubular member II and loosely engages about the inner bar or core member I4. The second tubular member 2| is preferably constructed of glass or the like and this tubular member 2| is rotatable relative to the core member I4 and is also rotatable relative to the outer shell or tubular member I I. The lower end of the inner tubular member 2| rests on a cushioning member 22 in the form of a felt ring or like gasket which engages on the upper sides of the two race members II and I8. This cushioning member 22 also acts as a seal to the lower end of the tubularI member 2| so that any filings or chips dropping down inside the outer tubular member I I will not contact with the anti-friction bearing comprising the race members I'I, I8 and the balls 20. In addition the sealing member 22 acts as a cushioning element for the glass tube 2|. The upper end of the bar I0 is similar to the lower end with the exception that the sealing member 22 may if desired be eliminated.

In Figure 2 there is disclosed a modified form of this bar structure wherein a bar I0a is provided having caps I2@- at the opposite ends thereof similar to the caps I2 on the bar IIJ in Figure 1. In this form the inner bar or core member I4a has the opposite ends thereof engaged with a cone-shaped bearing member 23 which is carried by an annular plate 24 engaging within the outer shell or tubular member I Ie. The ends of the inner member I4a are provided with a cone-shaped seat 25 in which the end of the bearing member 23 engages. A glass tubular member 2|2L is disposed inside the outer bearing member IIa and is interposed between the core member |42l and the outer tubular member I Ie. This inner tubular member 2liL rotatably engages at the opposite ends thereof on the adjacent surface of the disc or bearing member 24.

In Figure 3 there is disclosed another form of this invention wherein the bar II)b is provided with caps I2b similar to the structure shown in Figure l but in this form the inner bar member I4 is provided with reduced end portions I5b which engage in a thrust plate 26 forming part of an anti-friction bearing structure. A second thrust plate 2'I is disposed inside of the outer tubular member IIb and balls 28 are interposed between the two race members or thrust plates 26 and 21. An inner tubular member 2|b is interposed in the space between the inner bar I4b and the outer shell or tubular member IIb and engages on the upper face of the thrust plate 26. In this form a sealing member similar to that disclosed at 22 in Figure 1 may be interposed between the adjacent end of the glass tubular member 2| and the inner face of the thrust plate 26.

In Figure 4 there is disclosed a further modification of this invention wherein the bar member IIIc has the opposite ends thereof bored out as at I9c and an anti-friction bearing structure including race members I'Ic and I8c are engaged in the seat or bored out portion ISU. A core or inner bar member I4c engages the inner race member I'Ic and a tubular glass member 2|c is interposed between the core I4c and the outer shell or bar I IC. In this form the cap I2 is eliminated and in place thereof a cup-shaped sealing member 29 is provided which is pressed into the bore I9c and is provided with a flanged outer end portion 30 which engages the adjacent end of the tubular member I IC. In this form it will be understood that the opposite end of the bar Illc is constructed on the inside thereof similar to the construction disclosed in Figure 1, that is, the usual sealing member 22 is interposed between the anti-friction bearing and the adjacent end of the glass tube 2|=.

In the use of this bar, the bar I0 is initially assembled prior to its being mounted in a window structure, door or other enclosure and the ends of the bar I0 are preferably embedded deep enough in the window structure so that the caps I2 will be concealed and thus so disposed that they are not in a position where a tool may be engaged therewith in order to tamper with the construction on the inside of the bar. Assuming that the bar is in a window structure such as a jail or the like, and that a saw is used to cut through the outer bar or casing I I, the cuttings will, after the shell II has been cut through, drop down inside the outer member II, but due to the sealing or cushioning member 22 these cuttings will be prevented from contact with the anti-friction bearings at the lower end of the bar I0. The glass tubular member 2| will now be engaged with the saw and reciprocation of the saw will cause the glass tubular member 2| to rotate inside the outer bar or tubular member II. Due to the rotation of this glass tube 2| the tool, such as a file or saw, will have little or no effect in its cutting operation on the surface of the tubular member 2|. However, in the event the ,glass tube 2| is broken or in some manner cut through, it will then be necessary that the tool engage the inner core I4 before the entire bar I0 is severed. This core I4 as hereinbefore stated is so constructed that it will resist the action of a cutting tool being so tempered or hardened that the tool will have little effect on the surface thereof. In addition to this, the core member I4 is freely rotatable on the inside of the outer tubular member II and reciprocation of a tool back and forth will only effect rotation of the core member I4 so that the core member I4 will not easily be cut through.

This bar has been constructed for the purpose of providing a tool-proof bar which may be used for a window or other opening in jails, banks, warehouses or the like where it is desired to provide a barred opening which cannot be cut through by ordinary tools such as may be smuggled into a jail or the like. The anti-friction bearings are preferably enclosed in a weather resistant grease or other lubricant which will not cake or harden so that the anti-friction bearings will freely operate at all times. It will of course be understood that the outer shell II may be constructed of highly tempered metal so that this outer shell in itself will resist the ac tion of a cutting tool. However, it has been found in actual practice that the hardening of the bars may be off-set by certain tools or cutting operations, but the bar herein disclosed is so constructed that even though the outer stationary bar portion thereof be cut through the inner parts of the bar will resist the cutting action of ordinary tools, such as saws, files or the like.

What I claim is:

1. A bar for the purpose set forth comprising an outer elongated tubular member, an inner solid bar disposed in said outer member, antifriction bearings at each end of said bar within said outer member, a sealing means interposed between said anti-friction bearing adjacent one end of said inner bar, and an inner tubular member interposed between said inner bar and said outer member and rotatable relative to said inner and said outer member.

2. A bar for the purpose set forth comprising an outer elongated tubular member, an inner solid bar disposed Within said outer member, anti-friction bearings at each end of said bar within said outer member, a combined sealing and cushioning member interposed between an anti-friction bearing adjacent one end of said inner bar and an anti-friction bearing, and a glass tube interposed between said inner bar and said outer tubular member and engaging at one end against said sealing member, said glass tube being rotatable relative to said outer member and to said inner bar.

3. A bar for the purpose set forth comprising an outer elongated tubular member, an inner solid bar loosely disposed within said outer member, means rotatably supporting said inner bar for rotation within said outer member, a cap at each end of said outer member, and a glass tube interposed between said inner bar and said outer member and rotatable relative to said inner bar and said outer member.

4. A bar for the purpose set forth comprising an outer elongated tubular member provided with reduced opposite end portions, a cap tightly engaging over said reduced end portions, the outer diameter of said cap being substantially equal to the outer diameter of said outer tubular member, a bearing seat at each end of said outer tu-` bular member, an anti-friction bearing on each seat, a solid bar engaging said bearings and rotatable within said outer member, and a glass tubeinterposed between said bar and said outer member and independently rotatable relative thereto.

5. A bar for the purpose set forth comprising an outer elongated tubular member, said outer member having reduced opposite end portions, a cap pressed onto the reduced end yportions of said outer member for sealing the ends of said outer member, a thrust bearing at each end of said outer member, a solid bar within said outer member engaging said thrust bearing, said bar including reduced end portions engaging within an inner race of said thrust bearings, and an inner tubular member disposed about said bar Within said outer member and engaging said thrust bearings at the ends thereof, said inner tubular member being independently rotatable relative to said bar and said outer tubular member.

6. A bar for the purpose set forth comprising an outer elongated tubular member, reduced end portions carried by said member, a cap tightly pressed onto said reduced end portions, a solid bar disposed Within said outer member, an annular plate at each end of said bar, a coneshaped bearing member carried by said plate engaging said bar to rotatably support said bar in said outer member, and an inner tubular member loosely engaging about said bar and independently rotatable with respect thereto and with respect to said outer member.

7. A bar for the purpose set forth comprising an outer elongated tubular member, an inner elongated member, means at substantially thej ends of said inner member rotatably supporting said inner member in said outer member, closure means at each end of said outer member, and an intermediate tubular member between said inner and outer member and rotatable independently of said inner member, the opposite ends of said intermediate member being open.

8. A bar for the purpose set forth comprising an outer elongated tubular member, an inner member disposed in said outer member, bearings at each end of said outer member rotatably supporting said inner member, a sealing means adjacent one end of said inner member for sealing said bearing, and an inner tubular member interposedy between said inner member and said f outer member and rotatably engaging said sealing means.

9. A bar for the purpose set forth comprising an outer elongated tubular member, an inner member loosely disposed within said outer member, means supporting said inner member for rotation within said outer member, a closure at each end of said outer member, and an intermediate tubular member interposed between said inner member and said outer member and rotatable relative to said members.

10. A bar for the purpose set forth comprising an outer elongated tubular member, an inner member loosely disposed within said outer member, means supporting said inner member for rotation within said outer member, a closure at each end of said outer member, and a frangible tubular member interposed between said inner member and said outer member and rotatable relative thereto.

ZACH ANSEL PEITY. 

